Rope grip for aerial cableways



Sept. 19, 1950 A. FEEDER ET AL 2,523,107

ROPE GRIP FOR AERIAL CABLEWAYS Filed June 28, 1945 s Sheets-Sheet 1 Amr r ri POM Zu berbi mer \N VENTORS WMWL wl n-TY,

s p 1950 A. FRIEDER ET AL 2,523,107

ROPE GRIP FOR AERIAL CABLEWAYS Filed June 28, 1945 3 Sheets-Sheet 2 Alber+ Frieder PC U| ZubQfbLlhlQV I \NVENTQRS W Q m ATTY.

. pin mount I resilient meansiactingjon said jaws to mainarm rigidly secured to saidpin and articulated to said hanger.

2..A cable gripping mechanism for a cable carrier comprising a frame having parallel slots disposed insaid frame, a pin carried in said slots,

one of said jaws being carriedby said pin, a

compression springlocated between said mentioned jaw and said frame, said spring acting on said oppositely disposed jaws to maintain a clamping pressure on said cable, afhanger pivotally mounted atone end to said frame and secured to said carrier at its other end, a second pin mounted for eccentric rotation in said frame and carrying the second jaw, and an arm rigidly secured to said second pin and articulated to said hanger.

3. A cable gripping mechanism as claimed in claim. 1 comprising a stop located on said frame to limit the movement of said hanger.

4. A cable grippin mechanism as claimed in claim 1 comprising a locking device carried by said frame and cooperating with said jaws to prevent them being opened accidentally.

5. A cable gripping mechanism as claimed in claim 1 comprising a'follower extending from said jaw which is carried by said pin mounted for eccentric rotation and an externally disposed cam track to cooperate with said follower whereby said jaws are coupled or uncoupled from said cable. i

6. A cable gripping mechanism for a cable carrier comprising gripping jaws for a traction 7 cable, a supporting frame for said gripping jaws,

resilient means acting on the jaws whereby the clamping pressure of the jaws. on the traction cable may be automatically maintained in spite of variations of the diameter of said cable, a

hanger for the carrier to be transported through i the agency of said gripping jaws engaging said traction cable, and emergency means mechanically connecting said grippin jaws and said hanger in such a manner that, in the olosedposition of said grippingjaws engaging said traction cable, the force exerted on said gripping jaws by said resilient means, acting through these gripping jaws and said emergency means on the hanger, maintains said hanger against a stop on said supporting frame against the action of the weight of the carrier to be transported acting on said hanger and tending to move it away from'said stop, so that in case of a breakdown of said resilient means, the hanger may move away from said stop under the action of the weight of the carrier to be transported and,

oppositely disposed, at least two jaws oppositely 6 W t i i x en ion when S d J ws re men. improperly closed and not gripping said cable, ai iaw ..co ctins; d t i n W i e. k:

ing said cable duringsuch-conditionto actuate an alarm; or stop the cable drive.

8. ,A cableg-ripping mechanism for a cable carrier'oo'r'npr'ising a frame," two gripping jaws carried by said frame; at least one of said jaws being displaceable relative to said frame in a direction toward-and away from the other jaw, a pivot pin for said displaceable jaw, said pivot pin being mount ed in said frame for displacement in a direction toward and away from said other jaw, said displaceable jaw being swingably mounted on said pivot pin, a hanger for the carrier pivotally mounted insaid frame and urged by the load toward a normal position, and means connected with said hanger and acting on said pivot pin to urge it toward said second jaw due to the tendency of said hanger to assume said normal position.

9/ A cable gripping mechanism for a cable carrier comprising a pair of gripping jaws for a traction cable, a supporting frame for said jaws, resilient means acting on one of said jaws to exert gripping pressure on the cable, a hanger for the carrier to support the load thereon, means connecting said hanger to the other of said jaws to exert gripping pressure on the cable proportional to the weight of the load, and an emergency stop to hold said first mentioned jaw and cooperate with said connecting means to maintain gripping pressure on the cable in the event of failure of said resilient means.

10. A cable gripping mechanism for a cable carrier, comprising a frame, two jaws adapted to grip the cable and each having a pivot capable of limited movement with respect to said frame, resilient means acting upon one of said pivots so as to hold said jaws in cable gripping position, a hanger for the carrier, and means actuated by said hanger upon a breakdown of said resilient means'for maintaining said jaws, in cable gripping position.

11. A cable gripping mechanism for a cable carrier, comprising a frame, two jaws adapted to grip the cable and each having a pivot capable of limited movement with respect to said frame, resilient means acting upon one of said pivots so as to hold'said jaws in cable gripping position, a hanger pivoted to said frame and urged by the load toward a normal position, and means actuated by said hanger upon a breakdown of said resilient means and acting upon the second pivot for maintaining said jaws in cable gripping position.

12. A cable gripping mechanism for a cable carrier comprising a frame, two gripping jaws pivoted in said frame on spaced-apart fulcrums and swingable from an open position to a closed position in which they can grip a cable, the fulcrums of both said jaws being displaceable in said frame for limited distances toward and away from an intermediate plane extending at right angles to the plane including said two fulcrums, resilient means urging one of said jaws with its fulcrum toward said intermediate plane, a hanger for the carrier pivoted to said frame and urged by the load toward a normal position, and means connecting said hanger to said second jaw so as to urge the fulcrum of the latter under the action of the load toward said intermediate plane and to move, in closed position of said jaws, said hanger away from its normal position REFERENCESRCITED" UNITED STATES PATENTS umber V 590,957? 913x75" 

